diff options
Diffstat (limited to 'src/parser/bounded_token_buffer.h')
| -rw-r--r-- | src/parser/bounded_token_buffer.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/parser/bounded_token_buffer.h b/src/parser/bounded_token_buffer.h index fad5edc1e..a29462687 100644 --- a/src/parser/bounded_token_buffer.h +++ b/src/parser/bounded_token_buffer.h @@ -18,6 +18,11 @@ ** an exception. Only use this factory if you *know* that the grammar ** has bounded lookahead (e.g., if you've set the k parameter in the ** parser. + ** + ** NOTE: ANTLR3 puts "hidden" tokens into this buffer too, so + ** pathological inputs can exceed the k token lookahead, even if + ** your grammar really is LL(k). Be sure that irrelevant tokens + ** are SKIP()'d and not "hidden". **/ #ifndef __CVC4__PARSER__BOUNDED_TOKEN_BUFFER_H |